10 Important Quality Control Tests for LED Display

From television to signage, the demand for LED display products had witnessed an exponential growth in the past few years. According to a recent study, the market for packaged LED products is expected to reach about 19 billion US dollars by 2020. As the need for producing more and more LED products is increasing, it often becomes difficult to cope with all the quality and industrial standards. Here are the most important Quality Control LED display tests which should be conducted for assuring high-performance quality to the consumers.

1. Mechanism check: Vetting the mechanical overhauls of the cabinets is one of the most important quality evaluation processes. Some of the parameters include testing the welding strength, painting quality, finishing, and logo placement. The cabinets may be subject to re-configuration or modification according to the QC report.
2. Screen assembling: Screen assemblage tests include investigating the ease of assembling, checking the gaps if there’s any, and testing the lock system. The screen is re-assembled or the cabinets are rebuilt if the reports suggest so.
3. Waterproof test: This process includes checking the front and rear grades of the outdoor cabinet to ensure no water infiltrates the screen.
4. Vibration test: The installation undergoes a quick vibration test to make sure all the components are properly placed and check how it works after the test. The cabinet might need to go over an overhaul in case of failure.
5. Image rendering test: After a successful screen installation, this is the most important QC procedure because the LED display quality depends on the content it renders. The course of action usually includes checking the quality of images and rcg/.con files.
6. Uniformity test: This process involves evaluating the uniformity of RGB and white properties. The screen might be subject to recalibration and re-arrangement.
7. Full-white testing: The image and heat dissipation of the screen depends on this test. The inspectors conduct a continuity and reliability of brightness and soldering respectively.
8. LED specification test: There are certain specifications that should be met for supreme quality performance. The inspectors check parameters such as wavelength, color temperature and diffusion angle to assure the modules are in place.
9. Spare parts listing: Re-checking of all the spare parts of the LED products are in order or not is also one of the prerequisites to complete the vetting activity. They make a full spare part list and propose the listing accordingly.
10. Packing and shipping: The entire QC test is incomplete if the resistance of LED products is not left unchecked. Based on the packing and packaging report, the package is given a clean chit for shipping.

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